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30 million years old cousin of chinchillas shows signs of enhanced hearing and living in groups


Waspie_Dwarf

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30 million years old cousin of chinchillas shows signs of enhanced hearing and living in groups

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Paleontologists from the Institut Català de Paleontologia Miquel Crusafont (ICP), the University of Edinburgh (UK), the Universidade Federal de Santa Maria (Brazil), and the University of Toronto in (Canada) have shown that the early South American rodent Incamys, a fossil relative to living chinchillas had a unique combination of endocranial brain features including expanded temporal lobes in the cerebrum and large caudal colliculi of the midbrain. This study suggests that these features are evidence for enhanced auditory acuity and vocalization processing in Incamys. Similarly to modern chinchillas, this 30 million years old rodent may have already been living in groups of individuals using calls to communicate with each other.

Read More: ➡️ Institut Català de Paleontologia Miquel Crusafont

 

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